Sinking-pump.



Patented May l4, l90l. B. H. ALDRICH.

SINKING PUMP.

(Application filed Sept. 7, 1900.1

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No. 673,939. Patented May I4, l90l. R. H. ALDRICH.

SINKING PUMP.

(Application filed Sept. 7, 1900. (No Model.) 3 Sheeta-$heet g.

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SINKING. PUMP.

(Application filed Sept. 7, 1900.)

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" ATENT OFFICE.

ROSCOE H. ALDRICH, OF JEANESVILLE, PENNSYLVANIA, ASSIGNOR TO THE JEANESVILLE IRON WORKS COMPANY, OF SAME PLACE.

SlNKlNG-PUIVIP.

SPEQIFIGATION forming part of Letters Patent N 0. 673,939, dated May 14, 1901.

Application filed fieptember 7,1900. Serial No. 29,341. (No model.)

To all whom, it may concern.-

Be it known that I, Roscoe H. ALDRICH, a citizen of the United States, residing at Jeanesville, county of Luzerne, and State of Pennsylvania, have invented a new and useful Improvement in Sinking-Pumps, of which the following is a specification.

My invention has relation to sinkingpumps; and it consists in the novel construction and arrangement of its parts, as hereinafter described.

The object of my invention is to provide a sinking-pump consisting of a working barrel and a power end with a casting forming a connecting'link between the working barrel and power end, said casting being of such a nature as to firmly connect the two parts together, the said casting being provided in its interior, on one side, with a cavity adapted to be used in the capacity of a storage-tank and connect with the working barrel, the said casting being provided on the opposite side with an air-chamber which is connected with the liquid-outlet of the pump.

The novelty of this invention resides principally in that portion of the pump comprising the working barrel and the framework and attachments located in the vicinity thereof.

As shown in the drawings, the pump is adapted to be operated by an electric motor; but any other means for supplying the power may be used.

In the accompanying drawings, Figure 1 is a front elevation of the pump. Fig. 2 is a side elevation of the pump, showing the lower end partly in section. Fig. 3 is a front elevation of the Working barrel of the pump, the lower portion being shown in section. Fig. 4 is a bottom plan view of the bottom of the pump. Fig. 5 is a horizontal sectional view of the cross-piece forming guides for the plungers. Fig. 6 embraces a face View and side elevation of collars adapted to be used in the stuffingboxes located at the points where the plungers enter the working barrel.

To the bell-crank shaft 1 a number of pitmen 2 2 are journaled at their upper ends. As indicated in Figs. 1 and 2, the bell-crank shaft 1 is rotated by means of an electric motor 3, the operating-shaft of the said motor being connected by a chain of gears and shafts with the gear-wheel 4, attached to the end of the bell-crank shaft 1; but, as before stated, the bell-crank shaft 1 may be operated by any other means without departing from the spirit of the invention.

As shown in the drawings, three pitmen2 2 are used; but more or less may be employed, according to the use to which the pump is to be put, the bell-crank shaft, the motor, and the chain of gears and shafts constituting what is known as the power end of the pump, the working barrel consists of a chest 5, the lower side of which is connected with a liquid-inlet pipe 6. In the lower portion of the said chest 5 is located a horizontal chamber 7, which is connected at its left-hand end with a perpendicular cavity 8, extending up into the side portion of the frame 9, as shown in Figs. 1 and 3. Located above the chamber 7 is an intermediate chamber 11, the diaphragm between the chambers 7 and 11 being provided with the valve-ports 10 10. The said ports 10 10 are normally closed by the spring-operated valves 12, the spring connection to the said valves being shown in Fig. 2. The rear portion of the chamber 11 extends back and down behind the chamber 7, as shown in Fig. 2. This rear portion of the said chamber 11 forms a space in which the plungers 13 operate. Located above the chamber 11 is a horizontal chamber 14, the diaphragm between the chambers 11 and 14 being provided with valve-ports 15 15, the said valve-ports being normally closed by the spring-operated valves 16, said valves 16 be ing shown in detail in Fig. 2. The horizontal chamber 14 at its right-hand end connects with the liquid-outlet 17, and at or about the same point it also connects with the perpendicular cavity 18, said cavity extending up in the portion 19 of the framework of the pump, said portion 19 being located opposite the portion 9. The cavity 18 forms an airchamber. The upper portions of the parts 9 and 19 of the framework are connected by the horizontal section 20, said horizontal section 20 being formed in its interior as a guide for the upper ends of the plungers 13 or other attachments. The lower ends of the pitmen 2 2 are pivotally connected to the upper ends of the 'plungers 15 or other attachments in a manner as indicated in Fig. 2 of the drawings. The rings 21, as shown in detail in Fig. 6, are adapted to be used about the plnngers 13 to close the stuffing-boxes at the points where the said plunger-s enter the working barrel. The bracket 22, as shown in Fig. 2, is for the purpose of supporting the pump in an operative position, the said bracket being secured to suitable supports. This, however, does not form a portion of the present invention.

In operation the pump works as follows: The plungers are caused to reciprocate in a perpendicular direction within the rear portion of the chamber 11. The liquid comes in through the inlet 6 and enters the lower horizontal chamber 7 and is then stored up in the storage-compartment in the part 9, which connectswith the chamber 7. As the plunger 13 elevates it draws the liquid in through the port 10 under the valve 12 into the chamber 11. As the plunger 13 descends the valve 12 is instantly closed and the liquid is forced up through port 15 under the valve 16 into the chamber 14. The description above given is for one plunger only. The plungers follow each other in rapid succession and perform the same operation as above described, the consequence being that a steady stream of liquid is supplied into the chamber 14: under a pressure and that the said liquid is forced out at the liquid-outlet l7 and receives an additional impetus from the air contained within the air-chamber located in the portion 19 of the framework. It will thus be seen that the liquid is drawn into the pump and is discharged under a heavy pressure in a steady and unvarying stream. At the same time the storage-tank for supplying liquid to the chambers '7 prevents any lost motion of the plungersthat is to say, that if the capacity of the liquid-inlet 6 should be diminished to such an extent as not to supply the liquid quick enough for the operation of the plunger-s 13 the liquid will be immediately supplied from that held in reserve in the storage-tank formed in part 9 of the framework. The same result will be attained should the ingress of the liquid into the pump be temporarily interfered with.

The location of the air-chamber in the framework on one side of the working barrel and the storage-tank on the opposite side, together with the cross-section 20, connecting these two parts and forming guides for the plungers, makes a very rigid and substantial framework, and at the same time the space is utilized to advantage. With this construction the vibration is reduced to a minimum or obviated altogether, and thus the pump while in operation is not liable to rack itself to pieces.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

A pump consisting of a working barrel and a power end, a framework connecting the power end with the working barrel, a storagetank located in said framework on one side of the working barrel, an air-chamber located in the framework on the opposite side of the working barrel, a cross-section connecting the parts of the framework containing the airchamber and the storage-tank together, said cross-section serving as a guide for the pumpplungers.

In testimony whereof I affix my signature in presence of two witnesses.

ROSCOE H. ALDRICH.

Witnesses:

VERNON H. R001), A. BARTHOLOMEW. 

